He looked tired.He seemed ________ a sleepless night.

He looked tired.He seemed ________ a sleepless night.
A.to have
B.to have had
C.having
D.as if he had
cathina660 1年前 已收到1个回答 举报

yangjl_81 种子

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答案B
【巧解导析】此题学生极易错选D项,但是seem后接as if/as though引导的从句只能用于以it开头的句子.seem除了接表语从句外,还可接不定式,因为不定式的动作在谓语动作之前完成,所以应用完成式.

1年前

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